Restoration Plus Series coils are correct for many 1966 to 1971 Chrysler cars. It is important to note that there
were originally two distinct types of coils utilized in these vehicles, each manufactured by a different company.
The coil we have reproduced is known by restorers as the “Long Skinny Type” and was manufactured by Essex.
The Essex coil features the part number 2444241 and the words Made in USA stamped on the side of it. The Essex coil was used in a good majority of vehicles produced from 1966 to 1971. The other coil that was used was
known as the “Short Fat Type” and was manufactured by Prestolite. The Prestolite coil has part number 2444242
on the side of it and the words Made in USA on top of the tower and is not currently being reproduced.

Something I've found as a general rule Essex coils used green lettering. Prestolite used yellow lettering BUT this is NOT writen in stone.
I have seen yellow print Essex coils but have never come across a green or white print Prestolite coil.

Generaly 1972 and later used what is reffered to as the the flag print style . Similar to what is still avail thru Mopar but done in green print. It has the rectangular box on it, sometimes with the word ' Mopar ' printed in it